445545422344 has 64 divisors (see below), whose sum is σ = 918814464000. Its totient is φ = 200861337600.

The previous prime is 445545422341. The next prime is 445545422383. The reversal of 445545422344 is 443224545544.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 445545422294 and 445545422303.

It is not an unprimeable number, because it can be changed into a prime (445545422341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59016682 + ... + 59024230.

It is an arithmetic number, because the mean of its divisors is an integer number (14356476000).

Almost surely, 2^445545422344 is an apocalyptic number.

445545422344 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 445545422344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459407232000).

445545422344 is an abundant number, since it is smaller than the sum of its proper divisors (473269041656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

445545422344 is a wasteful number, since it uses less digits than its factorization.

445545422344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12974 (or 12970 counting only the distinct ones).

The product of its digits is 6144000, while the sum is 46.

Adding to 445545422344 its reverse (443224545544), we get a palindrome (888769967888).

The spelling of 445545422344 in words is "four hundred forty-five billion, five hundred forty-five million, four hundred twenty-two thousand, three hundred forty-four".